81505930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{599}}^1\times {\mathrm{1237}}^1$

素因数の和:1854

約数の個数: 32

約数和(自身を含む): 160444800

約数和(自身を除く): 78938870

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 599, 1198, 1237, 2474, 2995, 5990, 6185, 6589, 12370, 13178, 13607, 27214, 32945, 65890, 68035, 136070, 740963, 1481926, 3704815, 7409630, 8150593, 16301186, 40752965, 81505930]

約数ペア:

[(1, 81505930), (2, 40752965), (5, 16301186), (10, 8150593), (11, 7409630), (22, 3704815), (55, 1481926), (110, 740963), (599, 136070), (1198, 68035), (1237, 65890), (2474, 32945), (2995, 27214), (5990, 13607), (6185, 13178), (6589, 12370)]